specified volume partition size is too small for FAT12
    Facility: EFI$CP, The OpenVMS EFI Partition Control Program
    Explanation: the specified partition volume creation size request
    is too small to be for a FAT12 volume.
    User Action: Specify a valid partition file size. For FAT12, the
    volume size is typically either 1440 or (more commonly) 2880.